Domain structure of tetragonal Pb(Zr,Ti)O3 nanorods and its size dependence

Tomoaki Yamada, Daisuke Ito, Osami Sakata, Junki Kuroishi, Takahiro Namazu, Yasuhiko Imai, Takahisa Shiraishi, Takao Shimizu, Hiroshi Funakubo, Masahito Yoshino, Takanori Nagasaki

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


We fabricated {100} Pb(Zr0.35Ti0.65)O3 (PZT) nanorods by partly etching a film grown on a Nb-doped SrTiO3 substrate using a focused ion beam, followed by annealing to recover the etching damage and promote the formation of a stable domain structure in the form of nanorods. The application of synchrotron micro-X-ray diffraction enabled the detection of the diffraction intensity from a single nanorod, which allowed us to clarify the size dependence of the domain structure of the fabricated nanorods. We found that the a-domain fraction in the tetragonal PZT nanorods decreased with decreasing rod width and that an exclusively c-domain structure was formed in nanorods of ≤1 μm width. The preferred formation of the c-domain in these nanorods can be rationalized in terms of the large depolarizing field in the a-domain and/or the in-plane compressive strain near the PZT/substrate interface.

Original languageEnglish
Article number10NA07
JournalJapanese journal of applied physics
Issue number10
Publication statusPublished - 2015 Oct 1
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)


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